No action is to be taken over misconduct allegations against Hampshire’s Chief Constable Andy Marsh.
Police and Crime Commissioner Simon Hayes said Essex Police had confirmed it found “no grounds to justify” the allegations against the constabulary’s most senior officer.
Mr Hayes commissioned Essex Police to investigate a number of complaints about CC Marsh and his handling of an investigation at Stanbridge Earls School near Romsey.
Mr Hayes said: “I can confirm that I have received written confirmation from Essex Police’s chief constable Steve Kavanagh, the senior investigating officer on Operation Oregon, that the final investigation report into Operation Oregon is being finalised.
“Essex Police has concluded that there is no evidence of wrong doing by CC Andy Marsh.
“All complaints against the chief constable have not been upheld.
“In his letter, CC Kavanagh confirmed that Hampshire Constabulary provided full co-operation to the Operation Oregon team and that CC Marsh gave the investigation his full support and provided a full, detailed and helpful account, which he was under no obligation to do.
“Having previously stated my absolute confidence in CC Marsh, I welcome this news and look forward to receiving the final report.”
The operation investigated whether CC Marsh was involved in a breach of confidentiality and contempt of court during rape investigations at the school, which closed last year.
Mr Marsh said he also welcomed the outcome of the investigation and wanted to thank everybody for their support over the recent months.
“Effective policing requires high public confidence across our communities,” he said.
“This trust helps police to protect vulnerable people and to create a hostile environment for the most serious criminals.
“Confidence in policing in Hampshire and the Isle of Wight is not just at an all time high, the independent crime survey consistently shows it to be considerably higher than in other parts of the country.
“That is because trust is built by the actions of thousands of dedicated police officers and staff who do not make the headlines, but serve the public every hour of every day.
“I am very proud to lead such an inspiring group of people and to have the privilege of receiving hundreds of emails and letters of thanks from the public, underlining the outstanding work that is done.”